<script setup lang="ts">
// @ts-nocheck

import { list, getTagList } from '../tag'

const run = () => {
    var radius = 250;
    var dtr = Math.PI / 180;
    var d = 300;
    var mcList: {}[] = [];
    var active = false;
    var lasta = 1;
    var lastb = 1;
    var distr = true;
    var tspeed = 10;
    var size = 250;

    var mouseX = 0;
    var mouseY = 0;

    var sa: number | null = null
    var ca: number | null = null
    var sb: number | null = null
    var cb: number | null = null
    var sc: number | null = null
    var cc: number | null = null
    var per = null

    var howElliptical = 1;

    var aA: string | any[] | HTMLCollectionOf<HTMLAnchorElement> | null = null;
    var oDiv: HTMLElement | null = null;

    var i = 0;
    var oTag = null;

    oDiv = document.getElementById('tagsList');

    aA = oDiv.getElementsByTagName('a');

    for (i = 0; i < aA.length; i++) {
        oTag = {};

        oTag.offsetWidth = aA[i].offsetWidth;
        oTag.offsetHeight = aA[i].offsetHeight;

        mcList.push(oTag);
    }

    sineCosine(0, 0, 0);

    positionAll();

    oDiv.onmouseover = function () {
        active = true;
    };

    oDiv.onmouseout = function () {
        active = false;
    };

    oDiv.onmousemove = function (ev) {
        var oEvent = window.event || ev;

        mouseX = oEvent.clientX - (oDiv.offsetLeft + oDiv.offsetWidth / 2);
        mouseY = oEvent.clientY - (oDiv.offsetTop + oDiv.offsetHeight / 2);

        mouseX /= 5;
        mouseY /= 5;
    };

    setInterval(update, 30);

    function update() {
        var a;
        var b;

        if (active) {
            a = (-Math.min(Math.max(-mouseY, -size), size) / radius) * tspeed;
            b = (Math.min(Math.max(-mouseX, -size), size) / radius) * tspeed;
        }
        else {
            a = lasta * 0.98;
            b = lastb * 0.98;
        }

        lasta = a;
        lastb = b;

        if (Math.abs(a) <= 0.01 && Math.abs(b) <= 0.01) {
            return;
        }

        var c = 0;
        sineCosine(a, b, c);
        for (var j = 0; j < mcList.length; j++) {
            var rx1 = mcList[j].cx;
            var ry1 = mcList[j].cy * ca + mcList[j].cz * (-sa);
            var rz1 = mcList[j].cy * sa + mcList[j].cz * ca;

            var rx2 = rx1 * cb + rz1 * sb;
            var ry2 = ry1;
            var rz2 = rx1 * (-sb) + rz1 * cb;

            var rx3 = rx2 * cc + ry2 * (-sc);
            var ry3 = rx2 * sc + ry2 * cc;
            var rz3 = rz2;

            mcList[j].cx = rx3;
            mcList[j].cy = ry3;
            mcList[j].cz = rz3;

            per = d / (d + rz3);

            mcList[j].x = (howElliptical * rx3 * per) - (howElliptical * 2);
            mcList[j].y = ry3 * per;
            mcList[j].scale = per;
            mcList[j].alpha = per;

            mcList[j].alpha = (mcList[j].alpha - 0.6) * (10 / 6);
        }

        doPosition();
        depthSort();
    }

    function depthSort() {
        var i = 0;
        var aTmp = [];

        for (i = 0; i < aA.length; i++) {
            aTmp.push(aA[i]);
        }

        aTmp.sort
            (
                function (vItem1, vItem2) {
                    if (vItem1.cz > vItem2.cz) {
                        return -1;
                    }
                    else if (vItem1.cz < vItem2.cz) {
                        return 1;
                    }
                    else {
                        return 0;
                    }
                }
            );

        for (i = 0; i < aTmp.length; i++) {
            aTmp[i].style.zIndex = i;
        }
    }

    function positionAll() {
        var phi = 0;
        var theta = 0;
        var max = mcList.length;
        var i = 0;

        var aTmp = [];
        var oFragment = document.createDocumentFragment();

        //�������
        for (i = 0; i < aA.length; i++) {
            aTmp.push(aA[i]);
        }

        aTmp.sort
            (
                function () {
                    return Math.random() < 0.5 ? 1 : -1;
                }
            );

        for (i = 0; i < aTmp.length; i++) {
            oFragment.appendChild(aTmp[i]);
        }

        oDiv.appendChild(oFragment);

        for (var i = 1; i < max + 1; i++) {
            if (distr) {
                phi = Math.acos(-1 + (2 * i - 1) / max);
                theta = Math.sqrt(max * Math.PI) * phi;
            }
            else {
                phi = Math.random() * (Math.PI);
                theta = Math.random() * (2 * Math.PI);
            }
            //����任
            mcList[i - 1].cx = radius * Math.cos(theta) * Math.sin(phi);
            mcList[i - 1].cy = radius * Math.sin(theta) * Math.sin(phi);
            mcList[i - 1].cz = radius * Math.cos(phi);

            aA[i - 1].style.left = mcList[i - 1].cx + oDiv.offsetWidth / 2 - mcList[i - 1].offsetWidth / 2 + 'px';
            aA[i - 1].style.top = mcList[i - 1].cy + oDiv.offsetHeight / 2 - mcList[i - 1].offsetHeight / 2 + 'px';
        }
    }

    function doPosition() {
        var l = oDiv.offsetWidth / 2;
        var t = oDiv.offsetHeight / 2;
        for (var i = 0; i < mcList.length; i++) {
            aA[i].style.left = mcList[i].cx + l - mcList[i].offsetWidth / 2 + 'px';
            aA[i].style.top = mcList[i].cy + t - mcList[i].offsetHeight / 2 + 'px';

            aA[i].style.fontSize = Math.ceil(12 * mcList[i].scale / 2) + 8 + 'px';

            aA[i].style.filter = "alpha(opacity=" + 100 * mcList[i].alpha + ")";
            aA[i].style.opacity = mcList[i].alpha;
        }
    }

    function sineCosine(a: number, b: number, c: number) {
        sa = Math.sin(a * dtr);
        ca = Math.cos(a * dtr);
        sb = Math.sin(b * dtr);
        cb = Math.cos(b * dtr);
        sc = Math.sin(c * dtr);
        cc = Math.cos(c * dtr);
    }
}

const fn = () => {
    nextTick(() => {
        run()
    })
}

getTagList(fn)
</script>

<template>
    <div id="tagsList">
        <a href="javascript:;" :title="name" v-for="{ name } in list">{{ name }}</a>
    </div>
</template>

<style scoped lang="scss">
#tagsList {
    position: absolute;
    // top: 10%;
    left: 50%;
    transform: translate(-50%);
    // width: 800px;
    // height: 500px;
    width: 100%;
    height: 100%;
}

#tagsList a {
    position: absolute;
    top: 0px;
    left: 0px;
    font-family: Microsoft YaHei;
    color: $color;
    font-weight: bold;
    text-decoration: none;
    padding: 3px 6px;
    transition: font-size $move;
}

#tagsList a:hover {
    font-size: 40px !important;
    // letter-spacing: 2px;
}
</style>